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Author:

Zhang, Cancan (Zhang, Cancan.) | Lu, Yuanwei (Lu, Yuanwei.) (Scholars:鹿院卫) | Shi, Suli (Shi, Suli.) | Wu, Yuting (Wu, Yuting.) (Scholars:吴玉庭) | Ma, Chongfang (Ma, Chongfang.)

Indexed by:

EI Scopus SCIE

Abstract:

The single thermal energy storage tank (STEST) has been extensively investigated because of the advantage of cost and efficiency. This research presents heat discharging performance of STEST using coil heat exchanger (CHE) with annular baffle at different working conditions. The heat discharging performance, flow field and temperature distribution of different parameters of the annular baffle are presented and discussed. The results show that the heat discharging time decreases with an increase inlet air velocity of the CHE. The heat discharging efficiency is up to 95.7% in this study, and the heat discharging time can reach to 18.7 hours. In addition, optimal dimensionless diameters of annular baffle are D-b/D-t = 0.6, H-s/H-t = 0.075 and H-x/H-t = 0.050 (H-s is the height from the top of baffle to the top of tank. H-t is the height of the tank. H-x is the height from bottom of the baffle to the bottom of the tank). The efficiency of heat discharging process can be enhanced with optimal dimensions of the annular baffle. This study presents a direct practicable guide to design the STEST.

Keyword:

annular baffle coil heat exchanger heat discharging single thermal energy storage tank

Author Community:

  • [ 1 ] [Zhang, Cancan]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Lu, Yuanwei]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Shi, Suli]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Wu, Yuting]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Ma, Chongfang]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 鹿院卫

    [Lu, Yuanwei]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

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Source :

INTERNATIONAL JOURNAL OF ENERGY RESEARCH

ISSN: 0363-907X

Year: 2020

Issue: 7

Volume: 44

Page: 5582-5595

4 . 6 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:115

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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